The Island of Intrigue.

When oil magnate Thomas Waring receives a letter from his old friend, Mrs. Juliet Smith, suggesting that his beloved daughter Maida spend her vacation at Mrs. Smith's island home, Waring encourages Maida to accept as he has to go East on business. After Mrs. Smith supposedly gets Maida, Waring receives a call from the real Mrs. Smith, who says that Maida has left with an impostor.